Is 305 Sumpter St rent stabilized?
305 Sumpter St is a registered NYC rent-stabilized building in Ocean Hill, Brooklyn (11233). It has about 9 apartments, built in 2018.
Also written as 305 Sumpter Street — or 305 Sumpter St, Brooklyn, NY 11233.
How this building compares
With about 9 apartments it is larger than 66% of the 353 rent-stabilized buildings this site tracks in Ocean Hill. It went up in 2018, 108 years after the 1910 median for stabilized buildings tracked in the neighborhood. HPD lists no open violations at this address — one of 54 such buildings among the 354 this site tracks in the neighborhood.
Building details
| Borough | Brooklyn |
| Neighborhood | Ocean Hill |
| ZIP | 11233 |
| Year built | 2018 |
| Apartments | 9 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A, 421-A (16) |
| BBL | 3015210065 |
Owner & management
| Owner | 305 SUMPTER LLC 94-98 NASSAU AVE ##226 · Brooklyn, NY 11222 |
| Managing agent | ASA HAMMES |
Building conditions
| HPD violations | 0 open / 4 total |
| HPD registration last filed | November 13, 2025 |
Full building report — $9
Frequently asked questions
Is 305 Sumpter St rent stabilized?
305 Sumpter St in Ocean Hill, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files, where its stabilization codes are MULTIPLE DWELLING A and 421-A (16). Registration is recorded for the building, not for each apartment in it, so an individual unit here can still have been deregulated — ask the landlord or DHCR for that apartment's rent history before relying on it.
How many apartments are at 305 Sumpter St?
305 Sumpter St (BBL 3015210065) has about 9 residential apartments and was built in 2018, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.